<s>
,	O
also	O
known	O
as	O
Battle	O
Mania	O
2	O
,	O
is	O
a	O
horizontal	O
side-scrolling	O
shoot'em-up	O
released	O
by	O
Vic	O
Tokai	O
for	O
the	O
Mega	B-Operating_System
Drive	I-Operating_System
in	O
1993	O
.	O
</s>
<s>
Battle	B-Application
Mania	I-Application
Daiginjō	I-Application
had	O
a	O
limited	O
print	O
run	O
of	O
this	O
title	O
and	O
it	O
is	O
very	O
difficult	O
to	O
find	O
in	O
complete	O
condition	O
with	O
box	O
and	O
instructions	O
;	O
consequently	O
,	O
it	O
is	O
one	O
of	O
the	O
most	O
expensive	O
Sega	B-Operating_System
Mega	I-Operating_System
Drive	I-Operating_System
games	O
today	O
.	O
</s>
<s>
Battle	B-Application
Mania	I-Application
Daiginjō	I-Application
builds	O
on	O
the	O
first	O
release	O
by	O
introducing	O
several	O
improved	O
features	O
including	O
tweaked	O
weapon	O
system	O
where	O
players	O
now	O
have	O
more	O
options	O
to	O
choose	O
from	O
for	O
how	O
they	O
want	O
to	O
play	O
the	O
game	O
.	O
</s>
